CN114333348A

CN114333348A - License plate discernment parking management system

Info

Publication number: CN114333348A
Application number: CN202210017639.5A
Authority: CN
Inventors: 蒙其忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-04-12

Abstract

The invention discloses a license plate recognition parking management system which comprises a fixed seat, wherein an infrared sensor and a display are respectively installed at two ends of the outer wall of one side of the fixed seat, a cavity is formed in the fixed seat, a first rotating rod is rotatably connected between the inner walls of two opposite sides of the cavity through a bearing, a driving gear is fixedly connected to one side of the outer wall of the first rotating rod, a driven gear is meshed with the outer wall of the driving gear, a second rotating rod is fixedly connected to the outer wall of one side of the driven gear, the second rotating rod is rotatably connected with the cavity through a bearing, and one end of the second rotating rod extends to one side of the fixed seat. The invention prevents the interference to the recognition of the license plate caused by the fuzzy camera caused by the adhesion of dust on the surface of the camera, can carry out force unloading treatment on the impact of the vehicle, prevents the interception mechanism from being damaged due to the impact, and prevents the interception mechanism from being incapable of rising due to the clamping phenomenon between the driving gear and the driven gear.

Description

License plate discernment parking management system

Technical Field

The invention relates to the field of parking management, in particular to a license plate recognition parking management system.

Background

At present, vehicle management system relies on manpower management seriously, face the vehicle and increase day by day, rely on the manpower seriously and manage and can cause cost-push and the wasting of resources, and the parking area vehicle is when parking, often need through discerning the vehicle to can park in order based on the vehicle, simultaneously, can remind the driver whether have the parking stall, thereby can carry out the current-limiting to the business turn over of vehicle, prevent to lead to the vehicle to park at will because the parking stall is nervous, thereby cause the influence to the management in parking area.

And license plate discernment parking management system can manage the vehicle that parks in order, when not having the parking stall, can forbid the vehicle to get into to the parking area of being convenient for manages the vehicle, and when the parking stall was sufficient, license plate discernment parking management system can discern the vehicle that parks, simultaneously, can time the time of parking license plate discernment parking management system parking.

License plate discernment parking management system can rely on the camera to discern license plate information usually, and the camera is at the during operation, often can be because the dust adhesion is on the surface of camera to lead to the camera obscure, and then can't effectually discern license plate information, thereby cause the influence to the management in parking area.

Disclosure of Invention

The invention aims to solve the defect that the existing patrol unmanned aerial vehicle does not have an anti-fog function and the fog can interfere the patrol of the unmanned aerial vehicle, and provides a license plate recognition parking management system.

In order to achieve the purpose, the invention adopts the following technical scheme:

a license plate recognition parking management system comprises a fixed seat, wherein an infrared sensor and a display are respectively installed at two ends of the outer wall of one side of the fixed seat, a cavity is formed in the fixed seat, a first rotating rod is rotatably connected between the inner walls of two opposite sides of the cavity through a bearing, a driving gear is fixedly connected to one side of the outer wall of the first rotating rod, a driven gear is meshed with the outer wall of the driving gear, a second rotating rod is fixedly connected to the outer wall of one side of the driven gear, the second rotating rod is rotatably connected with the cavity through a bearing, one end of the second rotating rod extends to one side of the fixed seat, an intercepting mechanism is arranged on the outer wall of one side of the second rotating rod, a second motor is fixedly connected to the outer wall of one side of the fixed seat, the second motor is fixedly connected with the first rotating rod, and a lifting mechanism is arranged on the outer wall of the top of the fixed seat, and one side outer wall of the lifting mechanism is provided with a positioning mechanism, the positioning mechanism comprises two positioning plates and a supporting plate, the positioning plates are connected with the fixed seat through bolts, the two side outer walls of the supporting plate are respectively provided with a positioning groove, the two opposite side inner walls of the two positioning grooves are rotatably connected with a positioning wheel through a bearing, the positioning wheel is naturally contacted with the positioning plates, the top outer wall of the supporting plate is fixedly connected with a camera, the top outer wall of the camera is fixedly connected with a protection plate, one side of the bottom outer wall of the protection plate is provided with a cleaning mechanism, the cleaning mechanism comprises a brush plate, an air cushion and an air bag, one side outer wall of the positioning plate is provided with a groove, the inner wall of the groove is bonded with the air bag, the two side outer walls of the air cushion are respectively bonded with the protection plate and the brush plate, one side outer wall of the air cushion is provided with a connecting pipe, and an air pipe is arranged between the air bag and the connecting pipe.

Preferably, the intercepting mechanism includes fixed axle and fender rod, and passes through bolted connection between fixed axle and the fender rod, and the dashpot has been seted up to one side outer wall of second bull stick, and the inner wall sliding connection of dashpot has the buffer block, passes through bolted connection between buffer block and the fixed axle.

Preferably, a first spring is fixedly connected between the inner wall of one side of the buffer groove and the outer wall of one side of the buffer block.

Preferably, elevating system includes supporting seat, first motor and threaded rod, and passes through bolted connection between supporting seat and the fixing base, and the spout has been seted up to one side outer wall of supporting seat, and the inner wall sliding connection of spout has the slider, and the outer wall of slider has the screw hole, threaded connection between threaded rod and screw hole and the spout, fixed connection between first motor and the supporting seat, pass through bolted connection between first motor and the threaded rod, fixed connection between slider and the backup pad.

Preferably, one side outer wall of protection pole is provided with protection machanism, and protection machanism includes a plurality of water pockets and protection pad, bonds between the both sides outer wall of water pocket respectively and protection pole and the protection pad, is provided with the pipe between two adjacent water pockets.

Preferably, a second spring is fixedly connected between the protection pad and the protection rod, and the protection pad is made of flexible materials.

Preferably, the top inner wall of the cavity is provided with a lubricating mechanism, and the lubricating mechanism is positioned right above the driven gear.

Preferably, lubricating mechanism includes oil storage bag, connecting plate and connecting rod, and bonds between the both ends of oil storage bag and cavity and the connecting plate respectively, is provided with the nozzle between oil storage bag and the connecting plate, the both ends of connecting rod respectively with pass through hinged joint between connecting plate and the driven gear.

Preferably, the position that one side inner wall of cavity is located the bottom has seted up the pull mouth, and the inner wall sliding connection of pull mouth has the pull board, and the collecting vat has been seted up to the top outer wall of pull board.

The invention has the beneficial effects that:

1. according to the invention, through the arranged cleaning mechanism, when the height of the camera is adjusted through the lifting mechanism, the camera continuously moves downwards along with the height of the camera, at the same time, the positioning wheel is contacted with the positioning plate, so that the camera can be positioned and processed through the arrangement of the positioning wheel and the positioning plate, when the positioning wheel is contacted with the air bag, the air bag is extruded along with the downward movement of the positioning wheel, at the same time, the air bag is sunken towards one side of the positioning plate under the action of the positioning wheel, the air in the air bag is conveyed to the inside of the air cushion through the air pipe, at the same time, the air cushion can be expanded due to the input of the air, the expanded air cushion can push the brush plate to move downwards, so that the surface of the camera is cleaned through the brush plate, the problem that the camera is blurred due to the adhesion of dust on the surface of the camera is avoided, and the interference on the identification of a license plate is caused, in addition, because the gas in the two air bags is simultaneously conveyed to the inside of the air cushion, the air cushion can be rapidly expanded, at the moment, the thrust borne by the brush plate can be increased, so that the cleaning effect of the brush plate on the camera can be improved, the positioning wheel moves downwards continuously, at the moment, the pressure of the positioning wheel on the air bags can disappear, the gas in the air cushion can flow back to the inside of the two air bags, at the moment, the brush plate can be far away from the camera, so that the work of the camera is facilitated, the shielding of the brush plate on the camera is prevented, and the identification of a license plate is influenced;

2. according to the invention, through the arranged protection mechanism, when the intercepting mechanism blocks the vehicle, the vehicle and the intercepting mechanism can collide due to error operation, at the moment, the stability of the intercepting mechanism can be improved through the protection mechanism, so that the intercepting mechanism is convenient to protect, when the vehicle is in contact with the protection pad, the water bag is extruded due to pressure, at the moment, water flow in the water bag can be conveyed to the interiors of the other water bags through the guide pipe, so that the impact of the vehicle can be relieved through the matching among a plurality of water bags, the damage to the intercepting mechanism due to the impact is prevented, in addition, when the vehicle collides with the intercepting mechanism, the gravity center of the intercepting mechanism can be changed, so that the stability of the intercepting mechanism is poor, and the counterweight processing can be carried out on the intercepting mechanism through the matching among the plurality of water bags, in addition, when the intercepting mechanism is impacted, the intercepting mechanism can have a certain buffer distance through the matching between the buffer groove and the second spring, so that the reaction time of a driver is conveniently given, and the driver can brake in time;

3. the invention can lubricate the engagement between the main gear and the driven gear through the arranged lubricating mechanism, so as to manage the vehicle, prevent the interception mechanism from being incapable of rising due to the dead locking phenomenon between the driving gear and the driven gear, further influencing the management of the vehicle, when the driven gear rotates along with the meshing of the driving gear, the connecting rod can do up-and-down reciprocating swing along with the rotation of the driven gear, when the connecting rod moves upwards, the oil storage bag is extruded, the lubricating oil in the oil storage bag is sprayed out through the nozzle, so that the lubricating oil acts on the driven gear, the lubricating treatment can be carried out between the driving gear and the driven gear through meshing, thereby improve the working life between driving gear and the driven gear, and the fluid of drippage can be collected in the inside of collecting vat.

Drawings

Fig. 1 is a schematic structural diagram of a license plate recognition parking management system according to the present invention;

FIG. 2 is a schematic cross-sectional view of a license plate recognition parking management system according to the present invention;

FIG. 3 is a schematic structural view of an intercepting mechanism of a license plate recognition parking management system according to the present invention;

FIG. 4 is a schematic structural diagram of a protection mechanism of a license plate recognition parking management system according to the present invention;

FIG. 5 is a schematic structural view of a lifting mechanism of a license plate recognition parking management system according to the present invention;

FIG. 6 is a schematic view of a partial structure of a license plate recognition parking management system according to the present invention;

FIG. 7 is a schematic structural view of a cleaning mechanism of a license plate recognition parking management system according to the present invention;

fig. 8 is a schematic structural view of a lubrication mechanism of a license plate recognition parking management system according to the present invention.

In the drawings: 1-a fixed seat; 2-an infrared sensor; 3-a display; 4-a lifting mechanism; 5-an interception mechanism; 6-a cavity; 7-a collecting tank; 8-a first rotating rod; 9-a drive gear; 10-a driven gear; 11-a chute; 12-a threaded rod; 13-a slide block; 14-a second rotating rod; 15-a buffer tank; 16-a first spring; 17-a fixed shaft; 18-a guard bar; 19-water bag; 20-a second spring; 21-a protective pad; 22-a catheter; 23-a first motor; 24-a positioning plate; 25-a positioning mechanism; 26-a support plate; 27-a camera; 28-protective plate; 29-a cleaning mechanism; 30-positioning grooves; 31-a positioning wheel; 32-air bag; 33-brushing the board; 34-an air cushion; 35-trachea; 36-a connecting tube; 37-a lubricating mechanism; 38-connecting plate; 39-oil reservoir; 40-connecting rod.

Detailed Description

Example 1

Referring to fig. 1-2 and 5-7, a license plate recognition parking management system comprises a fixed seat 1, an infrared sensor 2 and a display 3 are respectively installed at two ends of an outer wall of one side of the fixed seat 1, a cavity 6 is formed inside the fixed seat 1, a first rotating rod 8 is rotatably connected between inner walls of two opposite sides of the cavity 6 through a bearing, one side of an outer wall of the first rotating rod 8 is connected with a driving gear 9 through a bolt, a driven gear 10 is meshed with an outer wall of the driving gear 9, a second rotating rod 14 is connected with an outer wall of one side of the driven gear 10 through a bolt, the second rotating rod 14 is rotatably connected with the cavity 6 through a bearing, one end of the second rotating rod 14 extends to one side of the fixed seat 1, an intercepting mechanism 5 is arranged on an outer wall of one side of the second rotating rod 14, a second motor is connected with an outer wall of one side of the fixed seat 1 through a bolt, and the second motor is fixedly connected with the first rotating rod 8, the outer wall of the top of the fixed seat 1 is provided with a lifting mechanism 4, the outer wall of one side of the lifting mechanism 4 is provided with a positioning mechanism 25, the positioning mechanism 25 comprises two positioning plates 24 and a supporting plate 26, the positioning plates 24 are connected with the fixed seat 1 through bolts, the outer walls of two sides of the supporting plate 26 are respectively provided with a positioning groove 30, the inner walls of two opposite sides of the two positioning grooves 30 are rotatably connected with a positioning wheel 31 through bearings, the positioning wheel 31 is naturally contacted with the positioning plates 24, the outer wall of the top of the supporting plate 26 is connected with a camera 27 through bolts, the outer wall of the top of the camera 27 is connected with a protecting plate 28 through bolts, one side of the outer wall of the bottom of the protecting plate 28 is provided with a cleaning mechanism 29, the cleaning mechanism 29 comprises a brush plate 33, an air cushion 34 and an air bag 32, the outer wall of one side of the positioning plate 24 is provided with a groove, the inner wall of the groove is bonded with the air bag 32, and the outer walls of two sides of the air cushion 34 are respectively bonded with the protecting plate 28 and the brush plate 33, the connecting pipe 36 is arranged on the outer wall of one side of the air cushion 34, the air tube 35 is arranged between the air bag 32 and the connecting pipe 36, when the positioning wheel 31 contacts with the air bag 32, the air bag 32 is pressed along with the downward movement of the positioning wheel 31, at this time, the air bag 32 is depressed towards one side of the positioning plate 24 under the action of the positioning wheel 31, and the air in the air bag 32 is conveyed to the inside of the air cushion 34 through the air tube 35, at this time, the air cushion 34 is expanded due to the input of the air, the expanded air cushion 34 pushes the brush plate 33 to move downward, so that the surface of the camera 27 is cleaned through the brush plate 33, the camera 27 is prevented from being blurred due to the adhesion of dust on the surface of the camera 27, and the recognition of the license plate is interfered, in addition, because the air in the two air bags 32 is simultaneously conveyed to the inside of the air cushion 34, therefore, the air cushion 34 is rapidly expanded, at this moment, the thrust that brush board 33 received can increase to can improve brush board 33 to camera 27's clean effect, move down along with positioning wheel 31 continues, at this moment, positioning wheel 31 can disappear to the pressure of gasbag 32, and the inside gas of air cushion 34 can flow back to the inside of two gasbags 32, and at this moment, brush board 33 can keep away from camera 27, thereby the work of camera 27 of being convenient for prevents that brush board 33 from causing the sheltering from to camera 27, thereby causes the influence to the discernment of license plate.

In the invention, the intercepting mechanism 5 comprises a fixed shaft 17 and a protection rod 18, the fixed shaft 17 is connected with the protection rod 18 through a bolt, the outer wall of one side of the second rotating rod 14 is provided with a buffer groove 15, the inner wall of the buffer groove 15 is connected with a buffer block in a sliding manner, and the buffer block is connected with the fixed shaft 17 through a bolt.

On the basis, there is first spring 16 through bolted connection between one side inner wall of dashpot 15 and one side outer wall of buffer block, when taking place the striking, can make interception mechanism 5 have certain buffer distance after receiving the striking through the cooperation between dashpot 15 and the second spring 16 to be convenient for give driver reaction time, make the brake that the driver can be timely handle.

According to the invention, the lifting mechanism 4 comprises a supporting seat, a first motor 23 and a threaded rod 12, the supporting seat is connected with the fixed seat 1 through a bolt, a sliding groove 11 is formed in the outer wall of one side of the supporting seat, a sliding block 13 is connected to the inner wall of the sliding groove 11 in a sliding mode, a threaded hole is formed in the outer wall of the sliding block 13, the threaded rod 12 is in threaded connection with the threaded hole and the sliding groove 11, the first motor 23 is fixedly connected with the supporting seat, the first motor 23 is connected with the threaded rod 12 through a bolt, the sliding block 13 is fixedly connected with a supporting plate 26, the height of the camera 27 can be adjusted according to the height of a vehicle license plate, and therefore the license plate can be effectively identified.

The working principle is as follows: when a vehicle needs to enter a parking lot, the infrared sensor 2 senses the vehicle, at the moment, the camera 27 moves downwards under the action of the lifting mechanism 4, the first motor 23 drives the threaded rod 12 to rotate, so that the camera 27 moves from a high position to a low position, the camera 27 is convenient to identify a license plate, after identification is completed, the second motor drives the first rotating rod 8 to rotate, at the moment, the driving gear 9 rotates towards the rotation of the first rotating rod 8, the driven gear 10 drives the second rotating rod 14 to rotate through meshing, the second rotating rod 14 lifts the intercepting mechanism 5, so that the vehicle enters the inside of the parking lot, the parking time of the vehicle is recorded through the display 3, when the height of the camera 27 is adjusted through the lifting mechanism 4, the camera 27 continuously moves downwards along with the height of the camera 27, at this time, the positioning wheel 31 and the positioning plate 24 are in contact with each other, so that the camera 27 can be positioned by the positioning wheel 31 and the positioning plate 24, when the positioning wheel 31 is in contact with the airbag 32, the airbag 32 is squeezed along with the downward movement of the positioning wheel 31, at this time, the airbag 32 is depressed toward one side of the positioning plate 24 under the action of the positioning wheel 31, the gas inside the airbag 32 is delivered into the air cushion 34 through the air tube 35, at this time, the air cushion 34 is inflated due to the input of the gas, the inflated air cushion 34 pushes the brush plate 33 to move downward, so that the surface of the camera 27 is cleaned through the brush plate 33, the situation that the camera 27 is blurred due to the adhesion of dust on the surface of the camera 27, thereby interfering with the recognition of the license plate is prevented, and in addition, because the gas inside the two airbags 32 is delivered into the air cushion 34 at the same time, therefore, the air cushion 34 will expand rapidly, at this moment, the thrust that the brush board 33 received will increase, thereby can improve the cleaning effect of the brush board 33 to the camera 27, move down along with the positioning wheel 31, at this moment, the pressure of the positioning wheel 31 to the gasbag 32 will disappear, the inside gas of the air cushion 34 will flow back to the inside of two gasbags 32, at this moment, the brush board 33 will keep away from the camera 27, thereby the work of the camera 27 of being convenient for, prevent that the brush board 33 from causing the sheltering from to the camera 27, thereby causing the influence to the discernment of license plate.

Example 2

Referring to fig. 1-4, a license plate discernment management system that parks, compare with embodiment 1, on the basis of embodiment 1, one side outer wall of protective rod 18 is provided with protection mechanism, and protection mechanism includes a plurality of water bags 19 and protection pad 21, the both sides outer wall of water bag 19 bonds respectively with between protective rod 18 and the protection pad 21, be provided with pipe 22 between two adjacent water bags 19, when blockking the vehicle through intercepting mechanism 5, probably because the misoperation leads to the vehicle and collides with between intercepting mechanism 5, at this moment, can be to improving the stability of intercepting mechanism 5 through protection mechanism to be convenient for protect intercepting mechanism.

On above-mentioned basis, there is second spring 20 through bolted connection between protection pad 21 and the protection pole 18, and protection pad 21 is flexible material, and when the protection pad 21 was kept away from to the vehicle, water pocket 19 can recover fast under the effect of second spring 20, can cushion the processing to the dynamics that produces when striking simultaneously.

The working principle is as follows: when the vehicle is blocked by the intercepting mechanism 5, the vehicle and the intercepting mechanism 5 may collide due to a faulty operation, at this time, the stability of the intercepting mechanism 5 can be improved by the protection mechanism, so that the intercepting mechanism 5 is protected, when the vehicle contacts with the protection pad 21, the water bag 19 is squeezed due to pressure, at this time, water flow inside the water bag 19 is conveyed to the inside of the other water bags 19 through the conduit 22, so that the collision of the vehicle can be relieved through the cooperation between the plurality of water bags 19, the intercepting mechanism 5 is prevented from being damaged due to the collision, in addition, when the vehicle collides with the intercepting mechanism 5, the center of gravity of the intercepting mechanism 5 is changed, so that the stability of the intercepting mechanism 5 is poor, and the intercepting mechanism 5 can be treated by the cooperation between the plurality of water bags 19, thereby improving the stability of the intercepting mechanism 5 and preventing the intercepting mechanism 5 from being damaged due to shaking, and in addition.

Example 3

Referring to fig. 1-2 and 8, compared with embodiment 1, on the basis of embodiment 1, a lubricating mechanism 37 is arranged on the inner wall of the top of a cavity 6, the lubricating mechanism 37 is located right above a driven gear 10, the lubricating mechanism 37 comprises an oil storage bag 39, a connecting plate 38 and a connecting rod 40, two ends of the oil storage bag 39 are respectively bonded with the cavity 6 and the connecting plate 38, a nozzle is arranged between the oil storage bag 39 and the connecting plate 38, two ends of the connecting rod 40 are respectively connected with the connecting plate 38 and the driven gear 10 through hinges, so that lubricating treatment can be performed between a driving gear 9 and the driven gear 10, and the blocking mechanism 5 cannot rise due to the clamping phenomenon between the driving gear 9 and the driven gear 10 is prevented.

According to the invention, the position of the inner wall of one side of the cavity 6, which is positioned at the bottom, is provided with the drawing opening, the inner wall of the drawing opening is connected with the drawing plate in a sliding manner, and the outer wall of the top of the drawing plate is provided with the collecting tank 7, so that the dripping oil can be collected and treated.

The working principle is as follows: when driven gear 10 rotates along with the meshing of driving gear 9, connecting rod 40 can carry out reciprocating swing from top to bottom along with driven gear 10's rotation, and when connecting rod 40 upwards moved, at this moment, oil storage bag 39 can receive the extrusion, and the inside lubricating oil of oil storage bag 39 can be erupted through the nozzle, thereby make lubricating oil be used in driven gear 10, and then can carry out lubrication treatment between driving gear 9 and driven gear 10 through the meshing, thereby improve the working life between driving gear 9 and the driven gear 10, and the fluid of drippage can be collected in the inside of collecting vat 7.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A license plate recognition parking management system comprises a fixing seat (1), wherein an infrared sensor (2) and a display (3) are respectively installed at two ends of the outer wall of one side of the fixing seat (1), a cavity (6) is formed in the fixing seat (1), a first rotating rod (8) is rotatably connected between the inner walls of two opposite sides of the cavity (6) through a bearing, a driving gear (9) is fixedly connected to one side of the outer wall of the first rotating rod (8), a driven gear (10) is meshed with the outer wall of the driving gear (9), a second rotating rod (14) is fixedly connected to the outer wall of one side of the driven gear (10), the second rotating rod (14) is rotatably connected with the cavity (6) through a bearing, one end of the second rotating rod (14) extends to one side of the fixing seat (1), and an intercepting mechanism (5) is arranged on the outer wall of one side of the second rotating rod (14), the automatic positioning device is characterized in that a second motor is fixedly connected to the outer wall of one side of the fixing seat (1), the second motor is fixedly connected with the first rotating rod (8), a lifting mechanism (4) is arranged on the outer wall of the top of the fixing seat (1), a positioning mechanism (25) is arranged on the outer wall of one side of the lifting mechanism (4), the positioning mechanism (25) comprises two positioning plates (24) and a supporting plate (26), the positioning plates (24) are connected with the fixing seat (1) through bolts, positioning grooves (30) are formed in the outer walls of the two sides of the supporting plate (26), positioning wheels (31) are rotatably connected between the inner walls of the two opposite sides of the two positioning grooves (30) through bearings, the positioning wheels (31) are naturally contacted with the positioning plates (24), a camera (27) is fixedly connected to the outer wall of the top of the supporting plate (26), and a protection plate (28) is fixedly connected to the outer wall of the top of the camera (27), one side of guard plate (28) bottom outer wall is provided with clean mechanism (29), and clean mechanism (29) including brush board (33), air cushion (34) and gasbag (32), the recess has been seted up to one side outer wall of locating plate (24), and bonds between the inner wall of recess and gasbag (32), the both sides outer wall of air cushion (34) bond between with guard plate (28) and brush board (33) respectively, one side outer wall of air cushion (34) is provided with connecting pipe (36), and is provided with trachea (35) between gasbag (32) and connecting pipe (36).

2. The license plate recognition parking management system according to claim 1, wherein the intercepting mechanism (5) comprises a fixed shaft (17) and a guard bar (18), the fixed shaft (17) and the guard bar (18) are connected through a bolt, a buffer groove (15) is formed in the outer wall of one side of the second rotating bar (14), a buffer block is connected to the inner wall of the buffer groove (15) in a sliding mode, and the buffer block is connected with the fixed shaft (17) through a bolt.

3. The license plate recognition parking management system of claim 2, wherein a first spring (16) is fixedly connected between one side inner wall of the buffer slot (15) and one side outer wall of the buffer block.

4. The license plate recognition parking management system according to claim 1, wherein the lifting mechanism (4) comprises a support seat, a first motor (23) and a threaded rod (12), the support seat is connected with the fixed seat (1) through a bolt, a sliding groove (11) is formed in the outer wall of one side of the support seat, a sliding block (13) is connected to the inner wall of the sliding groove (11) in a sliding manner, a threaded hole is formed in the outer wall of the sliding block (13), the threaded rod (12) is connected with the threaded hole and the sliding groove (11) through a thread, the first motor (23) is fixedly connected with the support seat, the first motor (23) is connected with the threaded rod (12) through a bolt, and the sliding block (13) is fixedly connected with the support plate (26).

5. The license plate recognition parking management system of claim 1, wherein a protection mechanism is arranged on the outer wall of one side of the protection rod (18), the protection mechanism comprises a plurality of water bags (19) and a protection pad (21), the outer walls of two sides of each water bag (19) are respectively bonded with the protection rod (18) and the protection pad (21), and a conduit (22) is arranged between every two adjacent water bags (19).

6. The license plate recognition parking management system of claim 5, wherein a second spring (20) is fixedly connected between the protection pad (21) and the protection rod (18), and the protection pad (21) is made of a flexible material.

7. A license plate recognition parking management system according to claim 1, wherein the top inner wall of the cavity (6) is provided with a lubrication mechanism (37), and the lubrication mechanism (37) is located right above the driven gear (10).

8. The license plate recognition parking management system of claim 7, wherein the lubricating mechanism (37) comprises an oil storage bag (39), a connecting plate (38) and a connecting rod (40), two ends of the oil storage bag (39) are respectively bonded with the cavity (6) and the connecting plate (38), a nozzle is arranged between the oil storage bag (39) and the connecting plate (38), and two ends of the connecting rod (40) are respectively connected with the connecting plate (38) and the driven gear (10) through hinges.

9. The license plate recognition parking management system of claim 1, wherein a drawing opening is formed in a position, located at the bottom, of one side inner wall of the cavity (6), a drawing plate is slidably connected to the inner wall of the drawing opening, and a collecting groove (7) is formed in the outer wall of the top of the drawing plate.